Laser & Optoelectronics Progress, Volume. 56, Issue 20, 202408(2019)
Geometric-Phase Metasurfaces: from Physics to Applications
According to the generation mechanism of electromagnetic (EM) phase, electromagnetic metasurfaces can be divided into resonance-based metasurfaces using resonance response of microstructures and geometric-phase metasurfaces using anisotropic response of microstructures. In comparison with the resonance-based metasurfaces, geometric-phase metasurfaces have attracted much attention in recent years because of their non-dispersion, polarization dependence, and easy fabrication. This study presents an overview of the development of geometric-phase metasurfaces from the principle and method of their free modulation of EM waves to their extraordinary wavefront manipulation abilities in both the far- and near-field regions. Finally, we also present three typical applications enabled by geometric-phase metasurfaces, including highly efficient meta-hologram, vortex beam generator/detector, and flat achromatic metalens.
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Zhong Hu, Tao Xu, Rong Tang, Huijie Guo, Shiyi Xiao. Geometric-Phase Metasurfaces: from Physics to Applications[J]. Laser & Optoelectronics Progress, 2019, 56(20): 202408
Category: Optics at Surfaces
Received: Jul. 11, 2019
Accepted: Sep. 2, 2019
Published Online: Oct. 22, 2019
The Author Email: Xiao Shiyi (phxiao@shu.edu.cn)